So I've gotten a 2nd hand 3G N7, went to the local T-Mobile location which told me they did not have the proper SIM for my device.  Even called T-Mobile's 800 number and was informed they do not currently have micro-SIM's for mobile broadband plans, only regular size SIM's and that the only micro-SIM's they have is for phone plans only.  Can anyone tell me what's up with this?  I REALLY do NOT want to go with AT&T...